Bangladesh opposition leader Zia calls her supporters to enforce a transport blockade

Bangladeshi opposition leader Khaleda Zia has called on her supporters to enforce a transport blockade after four protesters were killed in clashes with police and pro-government crowds.

She urged members of her Bangladesh Nationalist Party (BNP) to halt road, rail and river transport indefinitely.
The deaths came on the first anniversary of disputed general elections won by the Awami League.
Both parties have called for rallies despite a ban on demonstrations.